Sleeping-case



C. A. HOPE.

SLEEPING CASE.

APPLICATION FILED AUG.5, 191B.

1 34,009, I Patented Dec. 2, 1919.

Invenlw,

ar Z ;H.HOP, by

unirsn STATES PAT NT OFFICE. i

CARL AUGUSTUS HOPE, OF EVERETT, MASSACHUSETTS.

swarms-case. v s

Specification or Letters Patent.

Patented Dec. ,2, 1.919.

Application filed August s, 1918. Serial Nail 48,341.

To all whom it may concern:

Be it known that I, CARL A. Horn, a citizen of the United States, and aresident of Everett, in the county of Middlesex and Commonwealth ofMassachusetts, have invented certain new, and useful Improvementsfabric, and are made in a plurality of compartments separatelyinflatable, the compartments in the mattress being preferably two andformed by the introduction of an airtight partition between the top andbottom thereof, the coverlet being similarly con- I structed.

Referring to the drawings forming part of this specification, Figure 1is a perspective view of a sleeping case embodying my invention. Fig. 2is a vertical longitudinal section of the same. Fig. 3 is a crosssection thereof.

As shown in Figs. 2 and 3, the bottom sheet 1 and the top sheet 2 have asheet 3 located between them .and jointly compose the mattress. The twocompartments 4, 5 are represented as partly inflated, inflating tubes 6,7 of Well known construction being provided for enabling them to beinflated at will, the inflation being ordinarily done by means of thelungs of the possessor. The

air may be retained in the compartments by means of plugs 9 kept frombeing lost by a string, 10,or in any other well known manner.

I prefer to form the upper sheet 2 with an enlargement 11 at the upperend to serve as a pillow, and this sheet should have its fabric surfaceoutward and to be further rendered warmer to the touch by any suitablemeans, as by having fibrous material cemented thereto or woven therein.

The coverlet I also prefer to have composed of three air tight sheets12, 13 and 14 attached to each other at their edges, and

person has ain himself after which a pull upon the cord will draw eachof the compartments thus formed bemg provided with an inflating tube 15.The under surface of the sheet. 13 is the one here to be rendered warmerto the touch, so that the person lying between the coverlet and mattressmay feel no chill therefrom.

The coverlet and mattress are preferably attached to each other alongone entire side and at the head-end clear to. the pillow 11, and at thefoot if desired, but the remainder is disconnected.

The end of the coverlet adjacent the pillow 11 is formed with a bay 16to adapt the same to fit beneath the chin of the'occupant. The shoulderportion 17 of the coverlet is provided with a number of buttons 19, asis also the corresponding portion of the mattress, whereby to lace theparts together. The lace or cord 20 being perma nently fastened to themattress at 21, can be easily enga ed'with the buttons 19 after the,

upon the mattress,

the shoulder portion 17 snugly into contact with themattress-edgethereat and shut out all drafts about the occupants neck.This lacing may be extended farther along the mattress and coverlettoward the foot, but ordinarily that illustrated is suflicient.

In case the ground is soft and the weather warm, neither the mattressnor the coverlet need to be" blown up',--but if hard and the air chill,both may be inflated toa limited degree. Ordinarily, it is sufiicient toinflate a single compartment in the coverlet, but in very cold weather,it will be necessary to inflate both. So also with the mattress.

The advantage in having a plurality of compartments in the coverlet isto conserve the warmth of the sleepers body. With a single compartment,the air warmed by the sheet 13 nearest thereto rises into contact withthe upper and exposed sheet 12 andis quickly chilled; but with the twocompartments, the air in the under one remains heated and but littleaffected by the contents of the upper compartment.

Another advantage of the double-compartmen-t construction is that theair is re.- tained more perfectly in place thereby. In a singlecompartment, with the same depth of air as the double-compartment, theair can be pressed more easily to other sections of the mattress and sopermit the hips or shoulders to come solidly against any extra hard partof the ground beneath; but with the two compartments the air is confinedmore efl'eetually' and cannot recede so easily from the hard spots. i

- This sleeping case is specifically designed for the army, and is hencenot only well adapted for sleeping purposes,-but can be quickly employedfor floats to enable the soldiers to cross a deep stream, two or threemen to each.

tion separating the mattress into two eomartments one above the other,and means or lndependently mfiatmg the two compart- -ments. n

In testimony that I claim theforegoinginvention I have hereunto set myhand this 6th day of July, 1918.

CARL AUGUSTUS HOPE.

